Motorman&#39;s stool



1. s. RALPH. MOTORMANS -STO0L.

'APPLICATION FILED SEPT-8,1921.

Patented May 30,1922.

[mven/Z'ar. v M20156 fiifzi ag/Maw 1451 70 rw/e JAMES S. RALPH, OF.SULLIVAN, MISSOURI.

Specification of Letters Patent.

MOTORMANS STOOL.

Patented May 30, 1922.

Application filed September 8, 1921. Serial No. 499,263.

To all whom it may concern:

Be it known that I, JAMns S. RALPH, a citizen of the United States,residing at vSullivan, in the county of Franklin and State'of Missouri,have invented certain new and useful Improvements in Motormens Stools,of which the following is a specification. l i

My invention has relation to improvements in motormens stools, andconsists in the novel features of construction more fully set forth inthe specification and pointed out in the claims.

The. object of the present invention is to' provide a stool that will besuitable for motormen in that it has a yielding seat that will preventthe jolting of thecar from being transmitted to the motorman. A furtherobject is to provide a stool that is adjustable to different heights,and one that is structurally simple and consists of but few parts. Otheradvantages will be better apparent from a detailed description of theinvention in connection with the accompanying drawings, in which- Figure1 is a side elevation of the stool; Fig. 2 is a plan view with part ofthe seatbroken away; Fig. 3 is a horizontal section through thesupporting spring for the seat taken on the line 3-3of Fig. 1; Fig. 4 isa longitudinal section through one of the legs showing the extensionscrew, for adjusting the height of the stool; Fig. 5 is a horizontalsection taken on the line 55 of Fig. 1.

Referring to the drawings, F 4 represents the stool supporting framecomprising tubular legs 1, around 'whichnear their lowerends a band 2 isdisposed, said band being held to the legs 1 frictionally by straps3,

one being riveted at both ends to the band immediately adjacent'eachleg, said strap binding the leg between it and the band. The upper endsof the legs are provided with horizontally projecting end portions 4flattened so as to contact firmly with the underside of a circular discor board 5, and two bolts 6, 6 are passed through the flattened end 4 ofeach leg, through the board 5 and through the overlapping ends a, a, ofa hinge spring 7 (of which there are four) said spring being bent from afiat piece of metal to a substantially rhomboidal outline, the oppositecorners b of the rhomboid in a horizontal plane, being rounded andslightly contracted at 00 between the rounded corner I) and sides 0 ofthe spring. A seat 8 is cured to the flat sides 03 of the springs by lagscrews. 9.

If weight is imposed on the seat 8 the springs will yield, thecontracted neck a of each spring acting as a hinge, and should the seatbe tilted the spring Wlll also bend at the intersection of the sides 0,0, and overlapping ends a, a.

A screw lOhaving threads t of steep pitch is fitted into the ends of thelegs 1, the lower end of the screw terminating in a rounded head 10',and a thumb-screw 11 is threaded through each strap 3 and leg 1, saidthumbscrew having a conical point adapted to enter the threads of thescrew 10. Thus by loosening the thumb-screw, 11 the screws 10 may bemoved in or out of the legs 1 to adjust the seat h 'ght after which thethumb-screws are again tightened. If a very slight adjustment isdesired, this may be done by merely turning the screw 10 one way oranother, the point of the thumb-screw riding between the threads of thescrew 10.

The above described invention is an improvement over that described inthe copending application of Win. A. Boyce and myself. filed May 28,1921, and serially numbered 473,515.

Having described my invention, I claim:

A stool comprising a seat, a supporting frame therefor, and a pluralityof springs interposed between said seat and supporting frame, said framecomprising a plurality of loosening the thumb screw.

In testimony whereof I hereunto aflix my signature.

JAMES S. RALPH.

